Zhang Bei is a salesman of an express delivery company. He is on his way to deliver express delivery every day. His company has a boss named Li Baomeng.
The boss got involved with his girlfriend, and the coming of the extreme cold apocalypse broke Zhang Bei's heart: Zhang Bei was conspired by his girlfriend and boss while hoarding supplies. When he handed the supplies to his girlfriend Wang Hui, Li Baomeng suddenly appeared and knocked him unconscious with an axe.
In the extremely cold apocalypse outside the house, Zhang Bei froze to death, and then he was reborn. He was reborn 20 days before the extremely cold apocalypse. With his rebirth, Zhang Bei awakened to the no-licking-dog system: as long as his affinity with the opposite sex exceeds 50%, he can obtain a large number of system-rewarded materials.
Later, Zhang Bei reached the peak of his life after the end of the world.
Purpose: Revenge after rebirth